DE2618863C3 - Elektronische Kleinuhr mit einer digitalen optischen Anzeigeeinrichtung - Google Patents

Elektronische Kleinuhr mit einer digitalen optischen Anzeigeeinrichtung

Info

Publication number
DE2618863C3
DE2618863C3 DE2618863A DE2618863A DE2618863C3 DE 2618863 C3 DE2618863 C3 DE 2618863C3 DE 2618863 A DE2618863 A DE 2618863A DE 2618863 A DE2618863 A DE 2618863A DE 2618863 C3 DE2618863 C3 DE 2618863C3
Authority
DE
Germany
Prior art keywords
oscillator
battery
display device
batteries
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE2618863A
Other languages
German (de)
English (en)
Other versions
DE2618863B2 (de
DE2618863A1 (de
Inventor
Norman E. Newport Beach Calif. Moyer (V.St.A.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of DE2618863A1 publication Critical patent/DE2618863A1/de
Publication of DE2618863B2 publication Critical patent/DE2618863B2/de
Application granted granted Critical
Publication of DE2618863C3 publication Critical patent/DE2618863C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/08—Arrangements for preventing voltage drop due to overloading the power supply
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
DE2618863A 1975-05-12 1976-04-29 Elektronische Kleinuhr mit einer digitalen optischen Anzeigeeinrichtung Expired DE2618863C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/576,760 US3968641A (en) 1975-05-12 1975-05-12 Digital watch with oscillator/divider power selection circuitry

Publications (3)

Publication Number Publication Date
DE2618863A1 DE2618863A1 (de) 1976-11-18
DE2618863B2 DE2618863B2 (de) 1977-11-10
DE2618863C3 true DE2618863C3 (de) 1978-06-29

Family

ID=24305886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2618863A Expired DE2618863C3 (de) 1975-05-12 1976-04-29 Elektronische Kleinuhr mit einer digitalen optischen Anzeigeeinrichtung

Country Status (7)

Country Link
US (1) US3968641A (enExample)
JP (1) JPS51138479A (enExample)
CH (1) CH614096B (enExample)
DE (1) DE2618863C3 (enExample)
FR (1) FR2311343A1 (enExample)
GB (1) GB1537137A (enExample)
HK (1) HK75579A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389704A (en) 1979-10-19 1983-06-21 Casio Computer Co., Ltd. Power source supply system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015420A (en) * 1976-05-03 1977-04-05 Hughes Aircraft Company Battery select circuitry and level translator for a digital watch
US4149257A (en) * 1976-06-15 1979-04-10 Citizen Watch Company Limited Alarm watch equipped with electronic calculator
JPS54149625U (enExample) * 1978-04-11 1979-10-18
US7004598B2 (en) * 2003-02-18 2006-02-28 Cheerine Development (Hong Kong) Ltd. Flashing light system with power selection
US7057354B2 (en) * 2003-09-15 2006-06-06 Cheerine Development (Hong Kong) Limited Frequency controlled lighting system
US7067986B2 (en) * 2003-09-15 2006-06-27 Cheerine Development (Hong Kong) Limited Frequency controlled lighting system
US7029140B2 (en) * 2003-12-23 2006-04-18 Cheerine Development (Hong Kong) Ltd. Flashing light system with multiple voltages
US7207688B2 (en) * 2005-08-18 2007-04-24 Wong Wai Yuen Interactive shoe light device
KR100656588B1 (ko) * 2006-02-10 2006-12-13 삼성전자주식회사 외장 배터리의 추가 장착에 대한 식별이 용이한 배터리잔량정보의 표시가 가능한 휴대용 단말기 및 그 방법
CN104020662A (zh) * 2014-06-22 2014-09-03 管存忠 一种年误差绝对值小于1秒的电子钟
CN108885430B (zh) 2015-11-12 2020-08-04 雷蛇(亚太)私人有限公司 手表

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881311A (en) * 1971-02-27 1975-05-06 Suwa Seikosha Kk Driving arrangement for passive time indicating devices
US3701249A (en) * 1971-03-12 1972-10-31 Hamilton Watch Co Solid state timepiece with liquid crystal display
JPS4895269A (enExample) * 1972-03-17 1973-12-06
JPS5534388B2 (enExample) * 1972-10-05 1980-09-06
US3911665A (en) * 1974-01-14 1975-10-14 Zenith Radio Corp Electronic timepiece having complementary electro-optical and electro-mechanical displays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389704A (en) 1979-10-19 1983-06-21 Casio Computer Co., Ltd. Power source supply system

Also Published As

Publication number Publication date
GB1537137A (en) 1978-12-29
DE2618863B2 (de) 1977-11-10
JPS51138479A (en) 1976-11-30
CH614096GA3 (enExample) 1979-11-15
FR2311343A1 (fr) 1976-12-10
US3968641A (en) 1976-07-13
DE2618863A1 (de) 1976-11-18
CH614096B (de)
HK75579A (en) 1979-11-02

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee